Couple of things I would add. I think Jordan most definitely meddled, but it was less accepted. No one knows how Jordan would have been if he had played in a league like we have today. From what I understand he was an insufferable dbag. I can't imagine in today's world instant communication world and constant surveillance he would have fared nearly as well as James.
That said, Lebron James is overrated as a basketball player. He is not the second best player ever. Top 10 without a doubt. Maybe even top 5. People talk about him as a lock second best, but I just don't see it. yes his athleticism is nearly unparalleled, but athletes always get bigger, stronger, faster. Comparing him to his peers, he is just not nearly as some of the other guys.
Onto Shawn Kemp:
https://www.youtube.com/watch?v=OARoyYN3Ce0
For me, Kemp could have been the best PF ever if he would have landed in a place like Utah (assuming a more structured organization and coach could have kept him right.) He had the greatest combination of athleticism/skill/size/length of any player in the 90s. He also supposedly had a bad cocaine, alcohol, and pie habit. The fact he was putting up 19/12 in the most competitive era at one of the deepest positions while on a diet of cocaine, whiskey and pie is pretty remarkable.
When I think back of players who were right there on the verge of being one of the greatest ever and then self destructed I think of Kemp. He was set to be next level. He got up to 300 pounds in Clevland and was still putting 18/10.
*I don't know if it was really pie, I think it was just really unhealthy foods.